CN202494411U - Device for measuring length of left edges for battery pole piece - Google Patents

Abstract

The utility model discloses a measuring device for the edge length of a battery pole piece. A scale that can be raised and lowered is provided directly above the battery pole piece. The utility model discloses a measuring device for the remaining length of the battery pole piece, which can quickly and accurately determine the left and right sides of the battery pole piece surface that are not coated with slurry during the coating process of the battery pole piece. The length of the blank part, so as to ensure the production quality of the battery pole piece, improve the production pass rate and consistency of the battery pole piece, effectively improve the market competitiveness of the product, and is conducive to extensive application in production, with significant production practice significance.

Description

A measuring device for the length of the remaining edge of the battery pole piece

technical field

The utility model relates to the field of battery technology, in particular to a measuring device for the length of the edge of a battery pole piece.

Background technique

At present, lithium-ion batteries have the advantages of high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices such as mobile phones, digital cameras, and laptop computers, but also widely used in electric vehicles and electric bicycles. As well as large and medium-sized electric equipment such as electric tools, the performance requirements of lithium-ion batteries are getting higher and higher.

Among them, the electrode pole piece is an important part of the lithium-ion battery and the core of the lithium-ion battery. In the production process of the lithium-ion battery pole piece, it is necessary to coat the surface of the battery pole piece with slurry, and when the slurry coating operation is performed on the surface of the battery pole piece, if the left and right sides of the battery pole piece surface are not reserved If the blank part of the slurry is not coated (that is, the edge is left), the battery pole piece is easy to bulge, and when the coating roller on the battery pole piece coating machine performs slurry rolling coating on the pole piece, the battery pole piece is easy to Cracking leads to broken bands, which greatly reduces the quality pass rate of battery pole pieces, produces a large amount of waste of pole piece materials, and increases the production cost of battery pole pieces.

Therefore, at present, when battery manufacturers apply slurry on battery pole pieces, they will reserve blank parts on the left and right sides of the battery pole piece surface that are not coated with slurry (that is, left edges), and the length of the left edges is directly related to It affects the production quality and yield of battery pole pieces.

However, at present, the battery pole piece production workers can only manually determine the length of the blank part (that is, the margin) on the left and right sides of the battery pole piece surface that is not coated with slurry by relying on their own eyes and feelings. The lengths of the edges left by skilled workers are not the same, and the accuracy is poor, so the consistency of the battery pole pieces produced is poor, and the production quality and production consistency of the battery pole pieces cannot be guaranteed.

Therefore, there is an urgent need to develop a device that can quickly and accurately determine the length of the blank portion on the left and right sides of the battery pole surface that is not coated with slurry during the coating process of the battery pole piece. Guarantee the production quality of battery pole pieces, improve the production pass rate and consistency of battery pole pieces.

Utility model content

In view of this, the purpose of this utility model is to provide a measuring device for the length of the left side of the battery pole piece, which can quickly and accurately determine the left and right sides of the battery pole piece surface during the coating process of the battery pole piece. The length of the blank part that is not coated with slurry ensures the production quality of battery pole pieces, improves the production pass rate and consistency of battery pole pieces, effectively improves the market competitiveness of products, and is conducive to wide application in production , which has great practical significance in production.

For this reason, the utility model provides a measuring device for the length of the battery pole piece. There is a scale 2 that can be raised and lowered directly above the battery pole piece.

Wherein, two cylinders 5 placed horizontally are included, and the tops of the two cylinders 5 are respectively connected with a bracket 6;

A threaded lead screw 3 is connected between the two supports 6 , the threaded lead screw 3 runs through the tops of the two supports 6 , and the scale 2 is fixedly arranged at the bottom of the middle part of the threaded lead screw 3 .

Wherein, the left and right ends of the threaded screw 3 are respectively pivotally connected to the two brackets 6 .

Wherein, a circular turntable 1 is fixedly arranged at the left and right ends of the threaded screw 3 respectively.

Wherein, the cylinder 5 is connected with a solenoid valve 51 through two pipelines, the solenoid valve 51 is connected with an air source 52 through a pipeline, and the solenoid valve 51 is connected with a programmable logic controller 54 The programmable logic controller 54 is connected with a button 53 .

It can be seen from the technical solution provided by the utility model above that, compared with the prior art, the utility model provides a measuring device for the length of the battery pole piece, which can quickly and accurately measure the length of the battery pole piece during the coating process. accurately determine the length of the blank part not coated with slurry on the left and right sides of the surface of the battery pole piece, so as to ensure the production quality of the battery pole piece, improve the production pass rate and consistency of the battery pole piece, and effectively improve the quality of the product. Market competitiveness is conducive to extensive application in production and has great practical significance in production.

Description of drawings

Fig. 1 is a schematic structural diagram of a measuring device for a battery pole piece margin length provided by the utility model;

Fig. 2 is a schematic diagram of the connection of electrical components controlled by a cylinder in a measuring device for the length of the battery pole piece leftover provided by the utility model;

In the figure: 1 is the turntable, 2 is the scale, 3 is the threaded screw, 4 is the slurry coating roller, 5 is the cylinder, 6 is the bracket, 10 is the battery pole piece, 51 is the solenoid valve, 52 is the air source , 53 is a button, and 54 is a programmable logic controller.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to Fig. 1, the utility model provides a measuring device for the length of the battery pole piece, which includes two cylinders 5 placed horizontally, and a slurry that can rotate freely in the axial direction between the two cylinders 5 Coating roller 4, the upper surface of the slurry coating roller 4 is placed with a battery pole piece 10, and the battery pole piece 10 is to reserve the length of the blank part on the left and right sides of the surface that is not coated with slurry (that is, the margin length) pole pieces.

In the present utility model, in terms of specific implementation, the cylinder 5 is specifically a linear cylinder.

In the present utility model, in specific implementation, the tops of the two cylinders 5 have exposed piston rods respectively, and each piston rod is connected to a bracket 6 respectively, and the bracket 6 is located on the side of the slurry coating roller 4. above.

Referring to Fig. 1, in the present utility model, a threaded lead screw 3 is pivotally connected between the two supports 6, that is, the left and right ends of the threaded lead screw 3 are pivotally connected with the two supports 6; The threaded screw 3 runs through the tops of the two brackets 6, the left and right ends of the threaded screw 3 are respectively fixed with a circular turntable 1, and the bottom of the middle part of the threaded screw 3 is also fixed with a scale Ruler 2, the scale 2 is located directly above the battery pole piece 10, so that the battery pole piece production worker can rotate the threaded screw 3 by rotating the circular turntable 1, thereby rotating the fixed scale on the threaded screw 3 2. Realize the adjustment of the vertical position of the scale 2 .

In terms of specific implementation, the scale 2 may be a scale with a division value of 1 mm.

For the present utility model, if the production worker needs to measure the length of the blank part (that is, the length of the edge) that is not to be coated with slurry on the left and right sides of the surface of the battery pole piece 10, the production worker can control the piston rods of the two cylinders 5 When moving downward at the same time, the two brackets 6 move downward together, so that the threaded screw 3 drives the scale 2 to move downward together, and the scale 2 falls on the upper surface of the battery pole piece 10, thereby accurately Determine the length of the blank part (that is, the margin) reserved on the left and right sides of the battery pole piece surface that is not coated with slurry, and ensure that the length is the exact value required by the battery manufacturer. mark. It should be noted that the production worker can also rotate the scale 2 by rotating the circular turntable 1 to realize the adjustment of the longitudinal position of the scale 2 .

After the length of the edge of the battery pole piece is measured, the production worker can control the two cylinders 5 to rise, so that the two brackets 6 move upward together, so that the threaded screw 3 drives the scale 2 to move upward together. 2 Detach from the surface of the battery pole piece 10, and then after maintaining the length of the battery pole piece, apply slurry to the battery pole piece, and finally produce a high-quality battery pole piece that meets the requirements of the battery manufacturer. Ensure the consistency of battery pole piece production.

Referring to Fig. 2, in specific implementation, in order to automatically control the cylinder 5, the cylinder 5 of the present utility model is connected with a solenoid valve 51 through two pipelines, and the solenoid valve 51 is connected with a gas source 52 through a pipeline. The solenoid valve 51 is used to control the cut-off and opening of the gas source 52, thereby controlling the on-off of the gas circuit of the cylinder 5, controlling the flow direction of the gas entering the cylinder 5, and finally realizing the control of the lifting of the cylinder 5.

Referring to Fig. 2, in specific implementation, the solenoid valve 51 is also connected with a programmable logic (PLC) controller 54, and the programmable logic controller 54 is connected with a button 53, so that production workers can press the button 53 to send a control signal to the programmable logic controller 54, thereby controlling the working state of the solenoid valve 51 (open or close), specifically: press the button 53 downward, and the button 53 sends an opening control through the programmable logic controller 54 When the signal is used to control the solenoid valve 51 to open, the air source 52 is opened, so that the air source 52 is connected with the cylinder 5 through the pipeline, and the cylinder 5 is filled with gas, so that the top of the cylinder 5 rises; press the button 53 again, and the button 53 pops up When the button 53 sends a closing control signal through the programmable logic controller 54 to control the solenoid valve 51 to close, the air source 52 is disconnected, the air path of the cylinder 5 is cut off, and the cylinder 5 descends.

Therefore, for the present utility model, in the production process of the battery pole piece, the PLC controller signal can be given by the button 53, and then the signal is transmitted through the PLC controller (the PLC controller of the present utility model itself has a 24V power supply, so It does not need to be connected to the power supply) to the solenoid valve, so as to control the lifting of the cylinder, and finally make the scale reach the surface of the battery pole piece to measure the length of the blank part (that is, the edge) reserved on the left and right sides that is not coated with slurry .

By using the utility model, the length of the edge of the battery pole piece can be accurately controlled according to the process requirements, and the structure is simple, which is convenient for production workers to operate, is conducive to improving the production quality of the battery pole piece, and ensures the overall performance of the lithium-ion battery , improving the production efficiency of the battery.

In summary, compared with the prior art, the utility model provides a measuring device for the length of the battery pole piece, which can quickly and accurately determine the length of the battery pole piece surface during the coating process of the battery pole piece. The length of the blank part not coated with slurry is reserved on the left and right sides, so as to ensure the production quality of the battery pole piece, improve the production pass rate and consistency of the battery pole piece, effectively improve the market competitiveness of the product, and benefit It is widely used in production and has great practical significance in production.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (5)

1. a battery pole piece stays the measurement mechanism of edge lengths, it is characterized in that having a liftable rule (2) directly over the said battery pole piece.

2. measurement mechanism as claimed in claim 1 is characterized in that, includes two cylinders (5) of horizontal positioned, and two said cylinders (5) top is connected with a support (6) respectively;

Be connected with a threaded screw rod (3) between said two supports (6), said threaded screw rod (3) runs through the top of said two supports (6), and said rule (2) is fixedly set in bottom, said threaded screw rod (3) middle part.

3. measurement mechanism as claimed in claim 2 is characterized in that, said threaded screw rod (3) right ends is articulated with said two supports (6) respectively.

4. measurement mechanism as claimed in claim 3 is characterized in that, the right ends portion of said threaded screw rod (3) is set with a round rotating disk (1) respectively.

5. measurement mechanism as claimed in claim 2; It is characterized in that; Said cylinder (5) is connected through two pipelines with a solenoid valve (51); Said solenoid valve (51) is connected with a source of the gas (52) through a pipeline, and said solenoid valve (51) is connected with a programmable logic controller (PLC) (54), and said programmable logic controller (PLC) (54) is connected with a button (53).

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